Birth rate and Mortality rate
Briefly define the terms Birth rate and Mortality rate.
Expert
Birth rate: It is the number of births in a particular year per thousand persons.
Mortality rate or Death rate: It is the number of death per thousand persons in any particular year.
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Whether fecundation in amphibians is external or internal? Also explain whether amphibians are evolutionarily proximal to fishes or to reptiles?
explain the importance of breathing in humans
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Explain about the male and female pronucleus?
Give a brief description of the term secondary roots? In origin how secondary roots discriminate from shoots?
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